Chapter 2 G Commands
123
Ⅰ
Programming
2.23.4 Notes for Drilling/Boring Cycle
Note 1: When the reset or emergency stop is executed, the mode of drilling cycle remains. The user must pay
more attention to it when the program is started again.
Note 2: The single block stops at end point of operation 1, operation 2 or operation 6.
Note 3: When drilling/boring cycle is executed, creating or cancelling tool compensation code is executed, the
code is valid after the cycle ends.
2.24 Tapping Cycle Code
GSK988TA/TB CNC Turning System uses end tapping cycle (G84) and side tapping cycle (G88)
to complete the tapping function. Tapping is divided into common tapping (flexible) and rigid tapping
mode. In the common tapping mode, the spindle rotation and feed amount of tapping axis are
controlled separately, their synchronous relationship is not controlled well. In the rigid tapping mode,
the control of spindle motor is the same that of servo motor, the spindle rotating one circle
corresponds to some axial feed amount of the spindle even if the spindle accelerates/decelerates. In
the rigid tapping, the spindle can rapidly and exactly tap without using the floating chuck or variable
screw tap (use it in the common tapping mode).
M29 (it can set other M code according to parameter or directly use G code to specify rigid mode
without M code )specifies the rigid tapping cycle when programming.
When the rigid tapping is executed, the machine must have the corresponding conditions, i.e. the
spindle uses the position control and is applied to Cs axis, otherwise, the system does not support the
function. The function is applied to the machine with high configuration.
End tapping cycle (G84), side tapping cycle (G88), drilling fixed cycle G83/G87 and boring cycle
G85/G89 are in the same Group 10. G80 or one code included in Group 01 can cancel the tapping
fixed cycle. The system executes the normal operation after the drilling fixed cycle is cancelled. Clear
point R and hole bottom (point X or Z) data and other tapping data (P, K, F) is also cleared.
Vector of C tool compensation during the course of tapping is temporarily cancelled, but
automatically recovers after the code is executed.
2.24.1 Tapping Mode
Tapping cycle is divided into common mode and rigid tapping mode, and the follow method can
specify the rigid tapping mode; when N0.5200#0=0 and M29 is not specified, the system executes the
common tapping mode
Specify M29 S**** before G84 (G88) blocks;
M29 S ;
G84 X C R P F K (M );
X C ;
G80;
It is specified in the same block in G84 (G88) tapping blocks; M code for clamping C axis cannot
Summary of Contents for GSK988TA
Page 6: ...GSK988TA GSK988TA1 GSK988TB Turning Center CNC System User Manual Programming Operation VI ...
Page 19: ...1 Ⅰ Programming PROGRAMMING ...
Page 227: ...209 Ⅱ Operation OPERATION ...
Page 369: ...Chater 10 Machining Example 351 Ⅱ Operation ...
Page 371: ...353 Appendix ...
Page 465: ...Appendix 1 Parameters 447 Appendix ...
Page 479: ...Appendix 3 Interface Explanation 461 Appendix ...
Page 527: ...Appendix 5 Installation Layout 509 Appendix ...